Governor for explosion-engines.



H. M. GRANIER. l GOVERNOR FOR EXPLOSION ENGINES. 4

APPLICATION FILED APR.12.1907.

M L a s. Q N.

III.. ...lIll-.lnll ll Patented June 15, i909.

2 SHEETS- .www

W/'tnessres H. M. CRAMER GOVERNOR EOE EXPLOSION ENGINES.

APPLICATION FILED APR. 12. 1107.

Patented June 15,1909.

z SHEETS-MEET '2.

citizen of the United States,

'HARRY M. caAMER, or LANSING, MICHIGAN,

ASSIGNOR TO t N EW WA V MOTOR COMPANY,

or LANSING, MICHIGAN.

GOVERNOR FOR EXPLOSION-ENGINES.

Application alec April 1 2,

spelifieatioi of Lettere Patent.-

Patented June 15, 1909. 1907. seriarlvaasis.

- To all whom it may concern:

Be it known that I, HARRY M. CHAMBR, residing at Lansing, county ofIngham, State vof Michigan, have inventedcertain new and useful.Improvements in Governors -for Explosion- Eng1nes,

o f which the following is a specificatlon. l v

This invention relates to 4improvements 1n Agovernors for explosionengines.

The objects of this invention are, first, to provider an improvedgovernor mechanism for explosion engines having a-plurality of cylindersby which, when the speed ofthe engine exceeds a redetermined rate, thechargingL ofthe engine is automatically prevented, thereby preventinganexplosion and thereby controlling the speed. Second, to provide animproved governor mechanism or explosion engines in which the sparkingis properly timed'and one in Which the electrical connections forltheigniter mechanism. are disconnected when the' speed of the engineexceeds a predetermined rate.

AFurther objects, and objects relating to de tails of construction, willdefinitely appear from the detailed description to follow.

I accomplish the objects Vof my invention by the devices and meansdescribed in the following specification.

The invention is clearly deiined and pointedput in theclaims.

' A structure embodying the features of my invention is clearlyillustrated in the accomipanying drawing, forming a part of thisspecifica-tion, in which,

Figure 1 is a detail plan of a structure embodylng the features of myinvention, proportions being broken away to better show the relation ofthe parts. F ig. 2 is a detail enlarged Vvertical section, taken on r aline corresponding to line 12-"2 of'Fig. l. Fi 3 A is an enlarged detailplan ofthe in ner en of one of ,the levers 14, parts being broken awayto better show the arrangement oftheparts. Fig. 4 4is a detail sideelevation thereof.

'Fig'. 5 is an 4enlarged detail 'side elevationof the support and ajusting means for the contact members 28. Figol is' a detail view,partially in .longitudinal section, vtaken on av line corresponding toline 6--6 -of Fig.' 5. Fig. 7 is a detail section taken onalinecorresponding to line 7 7 of Fig. 2, showin details of construction.Fig. 8 is a detai l section taken on a line corresponding to line 8-8ofFig. A

`In the drawing, the sectional views are taken looking in the fdirectionof the little arrows at theends of the section lines, and similarnumerals of reference refer to sin1ilar parts throughout the severalviews.

Referring to the drawing, 1 represents the lengine base and the crankshaft casing thereof; 2 lthe engine cylinders; and 3 the crank shaft'.4Arranged, one at each side of the crank shaft, is a pair of cam shafts4, having valve-actuating cams thereon, the cams being provided withdrops or depressions 5Y on each side thereof, the object of which'willdefinitely appear later. Exhaust -by the push rods o r plungers, Y,which are arranged to engage the valve stems 10. The plungers 7 arelprovided with rollers 6, adapted to travel on the cams'.. The plun gersAare provided at their outer ends with laterally projecting arms 11 onwhich the valve stems rest. he cam shafts 4 are connected, to the crankshaft by gears 12 a'nd 13, the gears 13 being arranged on the cam shaftsand the gear 12 on the crank shaft. These gears are preferablyproportioned two to one so that thecam shafts are driven at half thespeed of the crank shaftl I A pair of levers 14, having inner yieldingpivoted Aat 15 and are provided with latch ...blocks 29 at their outer.ends, adapted'to engage the catches 9 on the valve-actuating plungers 7.The yielding sections are securedlto th'e pivoted sections by pivots 15.TheV bolts -17 are adjustably secured to the inner end of the pivotedsections and 'are loosely arranged through the lever sections ,16. i

-Th'e 'coiled springs-18, arrangedon the bolts 17, hold the section 16yieldingly in position. The'inner ends of the levers are held normallyoutward by the springs 19.

adapted to be controlled' by the governor ufeights 2l, the governorweights being pivoted at 22 on suitable arms provided therefor on the{1y-Wheel hub. then the speed of the engine exceeds a predeterminedrate, the collarA is drawn outwardly, thereby releasing the leverssot-hat their outer ends sections 16, is provided. The levers 14 are Onthe crankshaft is a collar 20, which is lesy 30 le`ased successively.

1 0- portions of the levers 14, and as soon as the.

valve-actuating plungers are shifted .to release the latch blocks 9, thelevers 14 are thrown out of their engaging position. The levers 14 areadjusted so that the catch '15 blocks 29 may be engaged with the blocks9 at. the same time.l The adjustment of the levers 14 is secured bymeans of the bolt 17 which is held in its adjusted position by suitablelock nuts, the collars V17 coacting 20 therewith. This adjustment is ofadvantage, as, for instance, if the inner end of one of the levers`should be worn morez than the other by the governor collar 20, theother the wear.- A

It is evident that as the plungers are actuated alternately both thelevers are not freed at' the same time. The yielding portion of thelevers, however, permits their being re- Were it not for this yieldingfeature of the lever, both would be forced out vof engagement with thevalve-l lactuating plungers at the same time, thereby releasing one orthe other of them prematurely.

In order' to properly time the sparking, I provide the valve-actuatingplungers with contact members '8, which are adapted to -enga e therelatively fixed spring contact 40 mem ers 28 as the plungersreciprocate. The contact members 28 are carried by the blocks 2,4slidably mounted in suitable ways provi-ded therefor in the bracket 23.v

'At the inner ends of the blocks 24 is a slide 27, having a V-shapedportion arranged between the ends of the `blocks and having converging`ribs 30 arranged in suitable grooves provided therefor in the ends ofthe blocks. By adjusting this slide the blocks are drawn in or pushedout, thereby changing the position of the spring contact vmembers 28, sothat they are engaged earlier or later in the stroke of the plunger, asdesired. This arrangement enables the exact timing of the sparking, thesparkin mechanism being of the jump-spark class, which is welllunderstoodl and not here illustrated.

The slide27 is operated by the lever 26, which is'provided with asuitable segment 25.' When the ,lever is raised to its highest' oint soas to draw the contact members 28 1n\vardlythey are engaged' by theContact members' on the valve-actuating plungers vl,very late in thestroke, thus causing a very late sparking, so that there is practicallyno ping the engine.

chance for a kick back. When the engine is started, the lever is forceddownwardly, thereby moving out the contact members 28 to the desiredpoint. When the lever 26 is in its outer position, the switch member 2670 carried thereby is thrown out ofcontact with the segment. 25 therebybreaking the elec-l Y trieal connections andas a consequence stop- Thestructure by which this is accomplished is clearly illustrated in Figs.2, 7 and 8.

It will be apparent that, when the exhaust valves are locked or heldopen, the charging of the engine is prevented, so that no charge istaken into the engine when running above a predetermined rate. This,ofcourse, prevents waste of fuel, Another-advantage isf that, as theengine runs when the valve is held open, the cool air passing into. andout of the cylinders cools the svame,`and also effectively cools. thevalve. By adjusting the t tension springs 30,'in the governor, the speedof the engine can be nicely regulated.

It is apparent that when the valve-actuy ating plungers are not operatedthe igniter mechanism is not operated, so that the elec-` trical supplyisnot needlessly exhausted.

'l have illustrated and vdescribed my iniproved '.governor mechanismVfor explosion engines indetail in the formpreferred by nie on account ofstructural simplicity and effectiveness in use.` I am, however, awarethat it is capable of considerable variation in structural detailwithoutdepar'ting from my invention, and I desire to be' understood as10o claiming the same specifically, as illustrated, as well as broadly.L I 1 Having thus described my invention, what l claim as new and desireto secure by Letters.Patent, is: I

1. The combination with av pair effex plosion engines, of a shafttherefor; a collar slidably arranged on said shaft; governor weightsarranged to control said collar; tension springs for saidy governorweights arranged to hold said collar normally inward; means foradjusting the 'tension of said springs; exhaust valves for said engines;exhaust valve-actuating plungers; means for actuating said plungers;.levers made up of sections, the outer-sections of said levers beingpivotally mounted and the inner sections thereof being arranged to beengaged by said governor collar; connecting pivots for said leversections; bolts secured to one of the lever sections and looselyarranged through the others; springs arranged on said bolts foryieldingly holdin said lever sections in osition; latch bloc s onsaidleversgfcatc es on said plungers adapted to be engaged 'by 125V saidlatch blocks; and springs for holding said levers in ,their engagingposition.;

I.2. The combination/with au vair of/f'explosion engines, of ashaftthere or; a llar slidably arranged on said-shaft;l a governor 130arranged to control said collar; exhaust valves for said engines;exhaust valve-actuating plungers; means for actuating said4 plungers;levers made up of sections. the outer sections of said levers beingpivotallyr mounted and the inner sectionsl thereof heilig' arranged t'obe engagedby said governor collar; connecting pivots for said leversections;

bolts secured to one of the lever sections and loosely arranged throughthe other; springs arranged on said -bolts for vieldi-ngly holding saidlever sections in-position; latch blocks on said levers; catches on saidplungers adapted to be engaged by said latch blocks; and springs forholding said levers in their engaging position.

3. The combination with a pair of explo- Ision engines, of a shafttherefor; a collar slidably arranged on said shaft; governor weightsarra sion springs for said governor weights arranged to hold said collarnormally inward; means forY adjustino the tension of said springs;exhaust va ves for said engines; meansl for actuating-said exhaustvalves; levers made up of sections; the outer; sections of said leversbeing 'pivotally mounted andv the inner sections thereof being arrangedto be engaged by said governor collar; said levers being adapte-d tohold the exhaust valves open; connecting pivots for said lever sections;bolts secured to one of the lever sections and loosely arranged throughthe other; and springs arranged on said bolts for yiehlingly holding'said lever sections together. Y

l. The combination with a pair of explosion engines, of a shafttherefor; a collar slidably arranged on said shaft.; a governor arrangedto control said collar; exhaust valves for said engines; means foractuating said exhaust valves; levers made up of sections, the outersections ot' said levers being pivotally mounted and. thereof beingarranged to be engaged by sa id governor collar, sa id yleversbeing adapted to hold the exhaust valves open; con neeting pivots for said leversections; bolts secured to one of the lever' sections and looselyarranged' through the other; .and springs arrangedfon said bolts foryieldi-ngly holding said lever sectionstogether.

5. The, combination with a pair of explosion en slidabl.' arranged onsaid shaft; governor weights arranged to control said collar;

tension springs for said governor weights arranged -to hold said collarnormally inward ;Y means for' adjusting the tension of said springs;exhaust valves for said engines; means for actuating said exhaustvalves; levers made upof sections, the outer sections of said leversbeing pivotally mounted and the inner. sections thereof being' arrangedto be engaged, by said governor colnged to control said collar; tentheinner sectionsv gines. ot`a shaft therefor; a collarr lar, said leversbeing adapted to hold the exhaust valves open; connecting' pivots forsaid lever sections; bolts secured to one of -the lever sections athrough the other said bolts.

(i. The combination with a pair' of explosion engines; of a.shafttherefor; a collar slidably arranged on said shaft; a governorarranged to control said collar; exhaust valves for said engines; meansfor actuating said exhaiist valves:A levers made up of sec'-` tions, theoiitersections of said levers being pivotalllv inounterh and the innersections thereof being arranged to be engaged by said governor collar.said levers being' adapti ed to hold the exhaust valves open; connectingpivots for said sections; bolts secured to one of the lever sections andloosely arranged through the other; and springs arranged' on said bolts.

T. The combination with an explosion engine of a governor; an exhaustialve for said engine; means for reciprocating said' exhaust valve; and'a catch leve' adapted to hold said valve open, said catch lever beingprovided with a yielding portion on which said governoracts there beinga spring in the connection for said yielding portion to the otherport-ion ofsaid catch lever, for the purpose specified.

SuThe combina-tion with a pair sion engines; of a shaft therefor; acollar slidably arranged on said shaft; governor weights arranged tocontrol said collar; tension springs-for saidgovernor weights arrangedto hold said collar normally inward; means for adjusting' the tension ofsaid springs; exhaust valves for said engines; means for successivelyactuating said exhaust valves; and catchilevers made up of and springVlarranged on vieldingly connected sections;` the outer sec-' tions beingpivotally mounted on the inner sections. and being adapted to engagesaid v exhaust valves and hold them open, the inner sectionsbeingarranged to be engaged by said governor collar, .there beingsprings in the connections for said outer sections to the inner sectionsof said levers, thereby permitting the successive disengaging of thecatch levers from said exhaust valves upon the actuation thereof whenthe levers'are engaged by said governor collar.

9. The combination with a pair of explosion engines; of a governortherefor; exhaust valves for said engines; exhaust valve 'actuating'pl-ungers; catch levers for said valve actuating plungers` said catchlevers' being' forl'ned of yieldingly conneeted sections: means forsuccessivel p'lungers; springs arranged to throw said catch levers intotheir engaging position with said plungers when they are released bysaid governor; and y springs arranged in said yielding'connection forsaid lever sections y actuating said 11d looselyv arranged of explollt;

adapted to swing the plunger engaging see-v 4tions thereof outof theirengaging position plungers are actuated I. actuating plungers; catchvleversy for said valve actuating being formed o. yle dlngl4'conneotedfsections; means for successive yactuatlng sa1d plungers;and' springs arrangedin said -I to release the same. I In Witnesswhereof;l I have hereunto set my hand and seal'm the presenoe of. two

1u'ngers,.suid catch leversy yielding connection for 'said leversections adapted to swing the plungerengaging sec` tions thereof outoftheir vengaging 'position when theirrespective plungers are aetuatedwitnesses. v

. HARRY M. CRAMER. '[L.s.] lsVtnesses:

E. W. GooNow,

'SGHUYLER BL SPnn'nIN.'

